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Extension of the Acceptable Active-Loss Range of a Transducer in a Capacitance-to-Frequency Conversion

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The main factors affecting the accuracy of the conversion of transducer capacitance into a frequency in a self-excited oscillator with a thermistor bridge are considered. It is shown that introducing a correction into the feedback circuit extends the range of acceptable active-conductance values by approximately two orders of magnitude with an unaltered accuracy of transducer capacitance measurements based on determining the frequency of self-excited oscillations.

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Parusov, V.P., Sharuev, N.K., Sharuev, V.N. et al. Extension of the Acceptable Active-Loss Range of a Transducer in a Capacitance-to-Frequency Conversion. Instruments and Experimental Techniques 45, 61–63 (2002).

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